Which of the following is NOT a critical action in preparing for a casualty evacuation?

In the context of preparing for a casualty evacuation, providing patient care details to family is not considered a critical action. The primary focus during a casualty evacuation is on the immediate care of the injured individual and ensuring their safe and efficient transport to a medical facility. Critical tasks include securing bandages and litter straps to prevent further injury and considering additional padding for long evacuations to enhance patient comfort and stability. These actions directly impact the casualty's well-being during transport.

Communicating with family, while important in other contexts, does not influence the actual evacuation process and patient safety in the immediate term. Instead, the priority should be on managing the casualty and facilitating the evacuation procedures effectively.